Fv. Bagrov, Synthesis and structure of N '-(2-phenylaminobenzoyl)hydrazones of aromatic aldehydes, ketones, and alpha-dicarbonyl compounds, RUSS J ORG, 36(6), 2000, pp. 854-857
Condensation of 2-phenylaminobenzcarbohydrazine with aromatic aldehydes, ke
tones, and alpha -dicarbonyl compounds affords hydrazones that in crystalli
ne state and in solutions form associates with the cis-amide group. The hyd
razone fragment therein exists as EE'E'' isomer stabilized by intramolecula
r hydrogen bond.